Finding the Fourth Proportional to 3,131.52, 4,341.27 and 2,965.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,131.52 : 4,341.27 = 2,965.07 : x
2. Step 2: Convert to fraction form
   3,131.52/4,341.27 = 2,965.07/x
3. Step 3: Cross multiply
   3,131.52x = 4,341.27 × 2,965.07
4. Step 4: Simplify right side
   3,131.52x = 12,872,147.73
5. Step 5: Solve for x
   x = 12,872,147.73/3,131.52
6. Step 6: Final answer
   x = 4,110.51